Peptide Weinreb amide derivatives as thioester precursors for native chemical ligation?
Organic & Biomolecular Chemistry Pub Date: 2017-02-07 DOI: 10.1039/C7OB00103G
Abstract
Peptide Weinreb amide derivatives with an N-substituted mercaptoethyl group are designed as thioester precursors for native chemical ligation. We show that these amides undergo rapid ligation with a cysteinyl peptide under normal NCL conditions to form various Xaa–Cys peptide bonds, including the difficult Val–Cys junction. Facile synthesis of the Weinreb amide linkers allows easy access to this new type of peptide thioester precursor by standard Fmoc solid phase synthesis.
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Journal Name：Organic & Biomolecular Chemistry
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CAS no.: 89640-58-4
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